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2373 Commits

Author SHA1 Message Date
Evan Cheng
0dfed43a5b Fix a pasto. Also simplify for Bill's benefit. 
llvm-svn: 82505
 2009-09-22 01:48:19 +00:00
Evan Cheng
255f416470 Clean up spill weight computation. Also some changes to give loop induction 
variable increment / decrement slighter high priority. 

This has major impact on some micro-benchmarks. On MultiSource/Applications
and spec tests, it's a minor win. It also reduce 256.bzip instruction count
by 8%, 55 on 164.gzip on i386 / Darwin.

llvm-svn: 82485
 2009-09-21 21:12:25 +00:00
Dan Gohman
cf13782fab Add a comment mentioning the rdar number associated with this test. 
llvm-svn: 82471
 2009-09-21 18:32:20 +00:00
Dan Gohman
69499b13fd Add support for rematerializing FsFLD0SS and FsFLD0SD as constant-pool 
loads in order to reduce register pressure.

llvm-svn: 82470
 2009-09-21 18:30:38 +00:00
Dan Gohman
48ade83e60 Recognize SSE min and max opportunities in even more cases. 
And fix a bug with the behavior of min/max instructions formed from
fcmp uge comparisons.

Also, use FiniteOnlyFPMath() for this code instead of UnsafeFPMath,
as it is more specific.

llvm-svn: 82466
 2009-09-21 18:03:22 +00:00
Evan Cheng
fccbd0afc6 Fix PR4986. "r1024 = insert_subreg r1024, undef, 2" cannot be turned in an implicit_def. Instead, it's an identity copy so it should be eliminated. Also make sure to update livevariable kill information. 
llvm-svn: 82436
 2009-09-21 04:32:32 +00:00
Dale Johannesen
a894053a9b When computing live intervals for earlyclobber operands, 
we pushed the beginning of the interval back 1, so the
interval would overlap with inputs that die.  We were
also pushing the end of the interval back 1, though,
which means the earlyclobber didn't overlap with other
output operands.  Don't do this.  PR 4964.

llvm-svn: 82342
 2009-09-20 00:36:41 +00:00
Evan Cheng
9827ad39a7 Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks. 
llvm-svn: 82311
 2009-09-19 09:51:03 +00:00
Dan Gohman
51f5442403 Delete the label names from this test to make it less fragile. 
llvm-svn: 82276
 2009-09-18 21:23:12 +00:00
Chris Lattner
3a78ce3a56 Make a new X8632_MachoTargetObjectFile TLOF implementation whose 
getSymbolForDwarfGlobalReference is smart enough to know that it 
needs to register the stub it references with MachineModuleInfoMachO,
so that it gets emitted at the end of the file.

Move stub emission from X86ATTAsmPrinter::doFinalization to the
new X86ATTAsmPrinter::EmitEndOfAsmFile asmprinter hook.  The important
thing here is that EmitEndOfAsmFile is called *after* the ehframes are
emitted, so we get all the stubs.

This allows us to remove a gross hack from the asmprinter where it would
"just know" that it needed to output stubs for personality functions.
Now this is all driven from a consistent interface.

The testcase change is just reordering the expected output now that the
stubs come out after the ehframe instead of before.

This also unblocks other changes that Bill wants to make.

llvm-svn: 82269
 2009-09-18 20:22:52 +00:00
Dale Johannesen
5e9a5c3664 Model the carry bit on ppc32. Without this we could 
move a SUBFC (etc.) below the SUBFE (etc.) that consumed
the carry bit.  Add missing ADDIC8, noticed along the way.

llvm-svn: 82266
 2009-09-18 20:15:22 +00:00
Dan Gohman
722b1eefdb Add support for using the FLAGS result of or, xor, and and instructions 
on x86, to avoid explicit test instructions. A few existing tests changed
due to arbitrary register allocation differences.

llvm-svn: 82263
 2009-09-18 19:59:53 +00:00
Anton Korobeynikov
592638ae05 Allow symbols to start from the digit if target requests it. This allows, e.g. pinning 
variables to specified absolute address. Make use of this feature for MSP430.
This unbreaks PR4776.

llvm-svn: 82227
 2009-09-18 16:57:42 +00:00
Chris Lattner
7fc4ad6a63 make this testcase check darwin32 also 
llvm-svn: 82182
 2009-09-17 23:56:41 +00:00
Chris Lattner
2ba262b7e8 rename test 
llvm-svn: 82181
 2009-09-17 23:55:12 +00:00
Chris Lattner
bf2fd768f9 convert to filecheck 
llvm-svn: 82179
 2009-09-17 23:54:26 +00:00
Chris Lattner
4a1c8fc061 rename file 
llvm-svn: 82178
 2009-09-17 23:42:06 +00:00
Daniel Dunbar
94cb6144d2 Remove test cases using -regalloc=simple. 
llvm-svn: 82130
 2009-09-17 06:37:07 +00:00
Evan Cheng
f56b0482c4 Fix PR4910: Broken logic in coalescer means when a physical register liveness is being shortened, the sub-registers were not. The symptom is the register allocator could not find a free register for this particular test. 
llvm-svn: 82108
 2009-09-17 00:57:15 +00:00
Bob Wilson
0bf35c25fe Convert more tests to FileCheck. 
llvm-svn: 81915
 2009-09-15 20:58:02 +00:00
Chris Lattner
db4916a123 fix PR4984 by ensuring that fastisel adds properly sign extended GEP displacement 
values to machineinstrs.

llvm-svn: 81886
 2009-09-15 18:27:02 +00:00
Chris Lattner
c25359e1a3 rename test 
llvm-svn: 81884
 2009-09-15 18:23:37 +00:00
Chris Lattner
2503b50e4d convert to filecheck 
llvm-svn: 81882
 2009-09-15 18:23:23 +00:00
Sandeep Patel
f3369c22a7 Fix superreg use in ARMAsmPrinter. Approved by Anton Korobeynikov. 
llvm-svn: 81878
 2009-09-15 17:53:11 +00:00
Chris Lattner
840c700654 several major improvements to the sparc backend: support for weak linkage 
and PIC codegen.  Patch by Venkatraman Govindaraju!

llvm-svn: 81877
 2009-09-15 17:46:24 +00:00
Dan Gohman
d29cafc083 Restore a comment that was lost in the merge. 
llvm-svn: 81857
 2009-09-15 15:09:54 +00:00
Chris Lattner
30fceaba05 this is failing on linux hosts, force a triple. 
llvm-svn: 81833
 2009-09-15 04:27:29 +00:00
Chris Lattner
170c116aa7 merge one more in. 
llvm-svn: 81824
 2009-09-15 02:27:23 +00:00
Chris Lattner
42aaa6e443 merge some more cmov tests into cmov.ll 
llvm-svn: 81823
 2009-09-15 02:25:21 +00:00
Chris Lattner
baf78e5b52 merge two cmov tests into one. 
llvm-svn: 81822
 2009-09-15 02:22:47 +00:00
Dan Gohman
520a6856ba Don't pull a load through a callseq_start if the load's chain 
has multiple uses, as one of the other uses may be on a path
to a different node above the callseq_start, because that
leads to a cyclic graph. This problem is exposed when
-combiner-global-alias-analysis is used. This fixes PR4880.

llvm-svn: 81821
 2009-09-15 01:22:01 +00:00
Dan Gohman
65829a4ccb On x86-64, the 32-bit cmov doesn't actually clear the high 32-bit of 
its result if the condition is false.

llvm-svn: 81814
 2009-09-15 00:14:11 +00:00
Chris Lattner
033d31165d merge the linux cpool/jtbl pic tests into pic.ll and convert to filecheck. 
Change the picbase symbol on non-darwin systems from ".Lllvm$4.$piclabel" to
".L4$pb".  The actual name doesn't matter and the darwin name is shorter.

llvm-svn: 81688
 2009-09-13 18:46:37 +00:00
Anton Korobeynikov
6c89da7027 Define proper subreg sets for arm - this should fix bunch of subtle problems 
with subreg - superreg mapping and also fix PR4965.

llvm-svn: 81657
 2009-09-13 00:59:43 +00:00
Dan Gohman
f437e68058 Add -mattr=+sse2 to the -march=x86 version of this test. Without 
sse, this code falls back to SelectionDAG isel which uses an x87
instruction, which is fine, but not what this test is testing for.

llvm-svn: 81656
 2009-09-12 23:45:47 +00:00
Dan Gohman
b165c11021 Remove an unnecessary -f. 
llvm-svn: 81546
 2009-09-11 18:41:06 +00:00
Dan Gohman
a080159a7c Convert more tests to avoid llvm-as. 
llvm-svn: 81545
 2009-09-11 18:36:27 +00:00
Dan Gohman
1880092722 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the 
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.

llvm-svn: 81537
 2009-09-11 18:01:28 +00:00
Chris Lattner
992e42b606 turn on -experimental-asm-printer for x86 / AT&T by default. 
llvm-svn: 81532
 2009-09-11 17:07:27 +00:00
Evan Cheng
74a3231de4 Follow up to 81494. When the folded reload is narrowed to a 32-bit load then change the destination register to a 32-bit one or add a sub-register index. 
llvm-svn: 81496
 2009-09-11 01:01:31 +00:00
Evan Cheng
3cad6283b8 It's not legal to fold a load from a narrower stack slot into a wider instruction. If done, the instruction does a 64-bit load and that's not 
safe. This can happen we a subreg_to_reg 0 has been coalesced. One
exception is when the instruction that folds the load is a move, then we
can simply turn it into a 32-bit load from the stack slot.                                                                                                                    

rdar://7170444

llvm-svn: 81494
 2009-09-11 00:39:26 +00:00
Dan Gohman
89b090e51e Reapply r81171 with a fix: don't try to use i64 when it 
isn't legal.

llvm-svn: 81492
 2009-09-11 00:34:46 +00:00
Bob Wilson
39f51320ca Don't swap the operands of a subtraction when trying to create a 
post-decrement load/store.

llvm-svn: 81464
 2009-09-10 22:09:31 +00:00
Bob Wilson
59e4c84c6f Revert r81171 which was causing pr4927. 
llvm-svn: 81415
 2009-09-10 00:49:22 +00:00
Bob Wilson
a2e8333eed Fix pr4939: Change FPCCToARMCC to translate SETOLE to ARMCC::LS. 
See the bug report for details.

llvm-svn: 81397
 2009-09-09 23:14:54 +00:00
Dan Gohman
16ad903fcf When widening a vector load, use the correct chain. This fixes PR4891. 
llvm-svn: 81343
 2009-09-09 14:22:57 +00:00
Torok Edwin
a40184aa77 Add testcase for r81322 (PR4933). 
llvm-svn: 81327
 2009-09-09 09:34:43 +00:00
Chris Lattner
d5f2b3f543 add a testacse for the objc problem that required required r81305 
to be temporarily disabled.

llvm-svn: 81320
 2009-09-09 06:19:34 +00:00
Chris Lattner
afa12db8a6 disable the new asmprinter by default. Both the Mangler and MCSymbol 
printing stuff are quoting symbols now, breaking objc testcases.

llvm-svn: 81319
 2009-09-09 06:11:14 +00:00
Evan Cheng
cf61d68eaf Cast MO.getImm() to unsigned before comparing with an unsigned limit. 
llvm-svn: 81318
 2009-09-09 06:05:16 +00:00